If a+b+c =90 then tan 2a +tan 2b +tan 2c=
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Answered by
2
Write tan 2a =tan (a+a)
Similarly write tan 2b and tan 2c
Then use the identity of tan(A+B)
YOU will get the answer
Similarly write tan 2b and tan 2c
Then use the identity of tan(A+B)
YOU will get the answer
Answered by
55
Answer:
If a+b+c =90 then tan 2a +tan 2b +tan 2c=
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